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- pronunciation:
- reI
di
eI
sh
 n
- features:
- Word Explorer
| part of speech: |
noun |
| definition: |
When we talk about radiation, we mean particles or waves of energy that are sent out by sources of heat or light. Sunlight is a form of radiation, for example. Some forms of radiation are dangerous. Even sunlight can be bad if people get too much of it.
Sunscreen gives your skin some protection from the radiation of the sun. |
| related words: |
glow |
| derivation: |
radiational (adj.) |
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